j36digital
You most likely updated Ubuntu without updating the PHP packages or appcd was uninstalled. This could mean that the source list is still on older ubuntu version instead of noble.
Check /etc/apt/sources.list.d/enhance.list. If it has been renamed to enhance.list.distUpgrade, rename it back to enhance.list. Replace "jammy" with "noble" if you have upgraded 22.04 to 24.04. Then run:
apt update
apt install --reinstall ecp-php{56,70,71,72,73,74,80,81,82,83,84}
apt install --reinstall ecp-core
try this as I already had this issue before with one server.
After that check if the nat rules are there in ufw that is for enhance in the file folder and that the filerd is enabled and started or reinstall filerd.
If you don't come out of this its better to make a ticket on enhance but I can not 100% confirm if you have the same issue I came across.
Tip to also compare this with other servers in your cluster that did upgrade correctly.